diff --git a/core/gui/src/app/workspace/component/result-panel/result-table-frame/result-table-frame.component.ts b/core/gui/src/app/workspace/component/result-panel/result-table-frame/result-table-frame.component.ts
index dfad0234bba..fd58ba433eb 100644
--- a/core/gui/src/app/workspace/component/result-panel/result-table-frame/result-table-frame.component.ts
+++ b/core/gui/src/app/workspace/component/result-panel/result-table-frame/result-table-frame.component.ts
@@ -346,7 +346,7 @@ export class ResultTableFrameComponent implements OnInit, OnChanges {
         if (row[col.columnKey] === null) {
           return "NULL"; // Explicitly show NULL for null values
         } else if (row[col.columnKey] !== undefined) {
-          return this.trimTableCell(row[col.columnKey].toString());
+          return this.trimTableCell(row[col.columnKey]);
         } else {
           return ""; // Keep empty string for undefined values
         }